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ugljik | |||
ugljik | |||
Angielski tezaurus | |||
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Carboniferous (MichaelBurov); Carb (MichaelBurov) | |||
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A naturally abundant element that occurs in many inorganic and in all organic compounds, exists freely as graphite and diamond. | |||
carb | |||
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Carboniferous (MichaelBurov); Carb (MichaelBurov) |
carbon: 19 do fraz, 4 tematyki |
Ekologia | 4 |
Ekonomia | 1 |
Nauka o ziemi | 4 |
Ochrona środowiska | 10 |